Home / 693,193.12-1,039,632.50-313,863.43

Finding the Fourth Proportional to 693,193.12, 1,039,632.50 and 313,863.43

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Solution

The fourth proportional to 693,193.12, 1,039,632.50 and 313,863.43 is: 470,723.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,193.12 : 1,039,632.50 = 313,863.43 : x
  2. Step 2: Convert to fraction form
    693,193.12/1,039,632.50 = 313,863.43/x
  3. Step 3: Cross multiply
    693,193.12x = 1,039,632.50 × 313,863.43
  4. Step 4: Simplify right side
    693,193.12x = 326,302,622,389.48
  5. Step 5: Solve for x
    x = 326,302,622,389.48/693,193.12
  6. Step 6: Final answer
    x = 470,723.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.